baber/WOPTO huggingface dataset:
Patent GB-2469328-A (GB)
Title: Needle and syringe with a tapered connector
Inventor: SHAMS IDEN
IPC: A61M5/34
Filed: 2009-04-09
Abstract: An intrathecal injection needle comprising a hypodermic needle 2 in fluid connection with a connector 4. The connector 4 has a tube 5 with a tapered outer surface, whereby its diameter decreases from the end of the tube 5 proximal to the hypodermic needle 2 towards the end of the tube distal from the hypodermic needle 2. Preferably, the connector 4 comprises a hub 7 with an internal thread 8 and is disposed co-axially around the tube 5. The tube 5 may have a maximum outer diameter of less than 4mm. Also disclosed is a syringe, suitable for connection to the intrathecal needle. It comprises a syringe body in fluid communication with a tube. The tube comprises a tapered bore, which increases in diameter from the end of the tube proximal to the syringe body towards the end of the tube distal from the syringe body. It has a maximum bore diameter of less than 4mm.
Patent GB-2460341-A (GB)
Title: Method of Measuring Mobility of Mass Selected Ions
Inventor: MICHELMANN KARSTEN
IPC: G01N27/64
Filed: 2009-05-29
Abstract: Methods for measuring the mobility of mass-selected ion species with high efficiency in ion mobility spectrometers (IMS) coupled to mass spectrometers (MS) consists in an analogue (as opposed to discrete digital) modulation of the ion current from a suitable ion source (21) with a steady modulation function, whose instantaneous frequency varies with time over a large frequency range. The modulated ion current is continuously fed through a mobility drift region (30) and into the mass spectrometer (38), where the temporally varying ion current profile of at least one ion species is measured. The mobility spectrum of the ion species is then generated from its ion current profile by analyzing the correlation with the modulation function.
Patent GB-2474225-A (GB)
Title: DNase for decontamination of reverse transcription and amplification reactions
Inventor: ELDE MORTEN
IPC: C12N9/22
Filed: 2009-07-21
Abstract: Methods of removing nucleic acid contamination from reverse transcription reactions and hot-start PCR (either a barrier hot-start PCR set up and/or a using a hot-start DNA polymerase), comprise the use of a DNase that is substantially irreversibly inactivated by heating at a temperature of about 50°C for 5 minutes, and that is substantially specific for double stranded DNA. The invention further provides a thermolabile DNase that is substantially irreversibly inactivated by heating at a temperature of about 50°C for 5 minutes, and that is substantially specific for double stranded DNA and its use in decontaminating reverse transcription and amplification. The DNase may be obtained by mutation of a DNase gene from Pandalus borealis.
Patent GB-714064-A (GB)
Title: Improvements in or relating to foundry sand ramming machines
IPC: B22C15/20
Filed: 1951-04-30
Abstract: 714,064. Moulding-machines. FOUNDRY EQUIPMENT, Ltd., and BEECH, A. S. April 29, 1952 [April 30, 1951], No. 10052/51. Class 83 (1). [Also in Group XXX] A foundry sand-ramming machine comprises a unit 33 having a ramming head 90 and a motor 89 pivoted on an arm 25 which swings about the axis of a column, wherein a beating element for the pivot member 32, Fig. 5, of the unit is disposed between deep side-plates 86, 87 attached at one end by a member 85 having a flange 88 for supporting the motor, and at the other end by a member 95 supporting the ramming head. The machine is similar to that described in Specification 714,063, with the electric motor 89 balancing the head 90 about the pivot 32 and driving the blades 193, Fig. 7, of an impeller 192 in the head through shafts 92, 94 connected together by flexible couplings 194. The casting 85 'is bored to form the bearing element which receives ball or rol'er bearings 83, 84 for the pivot 32. An access door 182 is hinged on the front of the head 90 and has a circular operating handle 186 with a pair of rotatable grips 187. A micro-switch 180 in a control box 80 on the head is operated by a stud 181 in the door 182 to break the circuit to the motor 89 when the door is opened. The motor is also arranged to drive, through reduction bevel-gears 109, 129, Fig. 4, and a chain 112 and sprockets 103, 111, the roller 99 of a conveyer belt 106, Fig. 5, arranged to deliver sand to the impeller. The conveyer may be detached from the plates 86, 87 as a unit which includes a base 96 of channel shape supporting, by means of members 104, walls 105 of rubber in engagement with the be't 106. Bearings for the beltrollers are provided in the sides of the base 96 and the upper pair are adjustable to vary the tension of the belt.
Patent GB-292727-A (GB)
Title: Improvements in plug adapters and like electrical fittings and cord grips therefor
IPC: H01R13/595
Filed: 1927-04-12
Abstract: 292,727. Bonnella, A., and Bonnella Bros., Ltd. April 12, 1927. Plug couplings; two-part couplings.-The contacts 2 which may be of the flush surface type or the plug or socket type are mounted in an insulating body 1 and are formed with tubular extensions 4 in which the leads are secured by screws 6 accessible through lateral holes 7 the leads entering through openings 5 and a screw bush 8 that forms a grip. The bore of the bush is such that the leads are gripped between its inner end and the central part of the body 1. The gripping edges may be rounded.
Patent GB-196910-A (GB)
Title: Improved process of operating steam turbines worked by superheated steam
IPC: F01K7/20
Filed: 1923-04-13
Abstract: 196,910. Akt.-Ges. Brown, Boveri, et Cie. April 26, 1922, [Convention date]. Working-fluid supply; regulating.-In turbines working with superheated steam and into which at high loads live steam is admitted, without passing through the first stage or stages, this additional steam is less superheated than the main steam so as to avoid thermal distortion of the casing &c. For example, the additional steam which is admitted at high loads to an intermediate stage of the turbine a by the usual valve e does not pass through the superheater c for the main steam. In a modification, the additional eteam is passed to a low-pressure turbine arranged in a separate casing and on the same or a different shaft from that of the high-pressure turbine. The additional steam may pass through a part of the superheater; it may be cooled before admission to the turbine by, for example, injecting water therein, or by using it as a means of intermediate superheat for the main steam.
Patent GB-785673-A (GB)
Title: Improvements in soil resistant pile fabrics and method of making them
IPC: D06M15/693
Filed: 1956-04-03
Abstract: Pile fabric is treated on the surface of the pile with a dilute colloidal aqueous solution of a synthetic resin, the softening point of which is at least about 175 DEG  F. and which is selected from polyvinyl chloride, polyvinyl acetate, vinylchloride-vinylidene chloride interpolymers, polystyrene and styrene-butadiene interpolymers, and the fabric is then dried at a temperature below the softening point, so that a coating of discrete particles of the resin is obtained.  An anionic emulsifying agent such as sodium lauryl sulphate may be used to form the colloidal solution. Polyvinyl chloride resins may be plasticised with glycerine or dibutyl phthalate.  The pile may be spun from viscose rayon, acetate rayon, nylon, polyvinylchloride, cotton or jute or mixtures of these with one another or with wool.
Patent GB-1182598-A (GB)
Title: Photographic Enlarger
Inventor: DENNER JAMES RAILTON
IPC: G03B27/72
Filed: 1966-03-09
Abstract: 1,182,598. Photographic enlargers. W.H. HOWSON Ltd. March 3, 1967 [March 9, 1966], No.10327/66. Headings G2A and G2C. In an enlarger, the main exposure (i.e. the exposure of the light-sensitive material to an image focused thereon of the object being photographed) and the flash exposure (i.e. an overall non-focused exposure to control the contrast) are carried out simultaneously from the same light source. As shown, light from a source 1 passes through a negative or transparency in a carrier 5, and is focused by the objective 14 on to lightsensitive material on an easel 15. The negative carrier 5 Fig. 2 (not shown) consists of a transparent plate having an outer opaque border (6) and an inner transparent border (7) surrounding the central area occupied by the transparency (9). Below this is an adjustable mask 12 Fig.3 (not shown), comprising a central area defined by four movable strips (10). Below mask 12, mirror pairs 17 intercept light coming through the clear border (7), and reflect it towards the objective 14, after which it passes to diffusion strips 16. This light A, A<SP>1</SP> carries no image, and surrounds the central image-carrying light B, B<SP>1</SP>. Thus the easel, besides receiving the focused image, is also illuminated evenly by the non-focused light A, A<SP>1</SP>, A<SP>11</SP>.
Patent GB-527362-A (GB)
Title: Improvements in or relating to tie plate arrangement for railroads
IPC: E01B9/68
Filed: 1939-04-04
Abstract: 527,362. Chair and like pads for railway rails. STEDMAN, T. W. April 4, 1939, No. 10488. [Class 104 (ii)] A resilient pad P of rubber-like material is arranged between the sleepers and rails, and is provided with holes for the rail-holding spikes S, these holes being slightly smaller than the crosssection of the spikes, so that their edges bind on the latter. The pad may contain metal reinforcement M with or without fabric layers F. A metal plate may be disposed between the rail and the pad. Reference has been directed by the Comptroller to Specification 505,136.
Patent GB-741617-A (GB)
Title: Improved method of and apparatus for machining grooved discs for fluid pressure operated clutches
IPC: B23B5/00
Filed: 1953-04-17
Abstract: 741,617. Lathes. HINDMARCH, T. Feb. 5, 1954 [April 17, 1953], No. 10551/53. Class 83 (3). The concentric annular grooves of inner and outer discs of friction-clutches are machined by mounting a disc in the chuck 6 of a turretlathe and cutting all the grooves simultaneously by sets of axially-projecting tools A &c. on an axially-sliding carrier 2. The cutting of each groove is distributed between tools A, B, C, whereof A and B cut the flanks and C the root of a groove. The tools are contained in boxes mounted in holders 1 radially adjustable on the carrier 2 which is attached to a face of the turret 3 and is guided, during axial feed, by vertical and horizontal surfaces of a bridge 7 secured to the lathe bed 12, and by a central bar 4 fixed to the carrier and sliding in a bush 5 in the chuck. The depth of the grooves is determined by feeding the turret against a fixed stop 13. The individual tools are set in relative radial positions by a toothed gauge corresponding to a radial section of the finished work, and the tool-boxes are set radially by a similar gauge having a boss fitting the bar 4. Further sets of tools for finishing the grooves are mounted on additional carriers 2 on further faces of the turret 3. The bridge 7 may be removed to allow other machining operations to be performed on the work by the lathe saddle, at the same chuck-setting.
Patent GB-419645-A (GB)
Title: An improved square
IPC: G01B3/56
Filed: 1934-04-07
Abstract: 419,645. Squares. FLESSELLES, W. F., 9, Macdonald Street, Potts Point, near Sydney, Australia. April 7, 1934, No. 10558. Convention date, April 7, 1933. [Class 97 (iii).] The blade 20, fixed at right angles to the stock 23, has a number of oblique slots 21, which may be used to determine the centre of rectangular sectioned blocks. The blade 20 is preferably graduated and has numbered slots making an angle of 45‹ with the edge of the blade.
Patent GB-1370522-A (GB)
Title: Plain bearings
IPC: F16C17/22
Filed: 1972-03-07
Abstract: 1370522 Bearings N LAING I LAING and L LUDIN 7 March 1972 [16 March 1971] 10569/72 Heading F2A A bearing assembly having two co-operating surfaces which are surfaces of revolution has one of the surfaces formed in a compliant bearing element 4 which defines one boundary of a cavity 7 in which fluid may be pressurized to urge the surface in the compliant element to-  wards the other surface. The bearing may be a self pressurizing fluid bearing and the element may be formed so that the cavity communicates with the bearing clearance so that the fluid in the cavity is pressurized by the bearing. The communication may be directly via a hole 5 in the element or indirectly via a membrane formed in part of the element or by fluid from the bearing deforming a portion of the cavity which is formed as a sealed cavity filled with incompressible fluid. In cases where the bearing is self-pressurizing (e.g. with spiral grooves 9 in one surface) means may be provided for facilitating rotation at low speeds, for example the lands of the grooved surface may be sprayed or platted with rhodium in which is embedded a suitable carbide, nitride or oxide. The bearing may be arranged so that this grooved surface co-operates with an element 3 having a surface of similar material, on starting and stopping of rotation while during normal running load is only transmitted via the compliant bearing element.
Patent GB-105718-A (GB)
IPC: B60R25/022
Abstract: 105,718. Perry, I. D. Oct. 24, 1916. Locking while standing.-Relates to devices for locking the steering-wheel in operative or inoperative position. In the construction shown in Figs. 1 and 3, the spider 14 of the steering-wheel is formed with projections 15 which interlock with similar projections 13<a> provided on the steering- pillar 8 when in operative position. The steering- wheel is provided with a lock 17, the bolt 19 of which rests on the bottom of either of the grooves 20, 21<a>. When the bolt 19 is engaged with the groove 20, the projections 15, 13<a> are interlocked, and the steering-pillar can be turned. If the bolt 19 is now withdrawn from the groove 20, the steering wheel will descend until the bolt is opposite the groove 21a, and the projections 15 rest on the bottom of the groove 20. In this position, if the bolt is turned into the groove 21a, the steering- wheel cannot be raised and can only rotate freely on the pillar. In a modification, the projections 15, 13<a> are replaced by a polygonal recess and a correspondingly shaped part of the pillar.
Patent GB-513591-A (GB)
Title: Improvements relating to variable pitch propellers
IPC: B64C11/32
Filed: 1938-04-06
Abstract: 513,591. Screw propellers. DE HAVILLAND AIRCRAFT CO., Ltd., and THOMAS, F. M. April 6, 1938, No. 10573. [Classes 4 and 114] A variablepitch propeller is provided with brake or stop mechanism actuated by means interconnected with the pitch varying mechanism. A sleeve 8 fixed on the shaft 4 has three sets of double brackets 9 between which are pivoted three-armed levers 11 of which one 11B carries a balance weight, 11C carries a brake shoe 11D adapted to operate against the brake surface 7A and the third 11A fits into a slot in a rod 14 connecting two discs 12, 13 The disc 13 has a spring engagement with the boss and may contact with rods 16 on the blade roots when the blades are approaching the feathered position. A spring 15 normally below the pivot passes above when the assembly is moved to the right and the brake is applied. In this feathered position the blade has a slight positive torque, the engine may be restarted by moving the assembly to the left by the lever 19 when the part 11A is moved by the rod 14 to release the brake. If necessary further movement of the lever 19 moves the assembly to contact with rod 16 and place the blade in lesser pitch setting. The masses on 11B may be such as centrifugally to prevent application of the brake at too, high speeds, and less motion in the rods 16, may be such that brake is inoperative unless the pitch is near feathered position. The brake shoe may have a projection to engage positively a recess 7B for locking the propeller. In a modification the brake may operate axially instead of being an internalexpanding one.
Patent GB-542012-A (GB)
Title: Screw
IPC: F16B23/00
Filed: 1940-06-19
Abstract: 542,012. Screws. DEHN, F. B. (United Screw & Bolt Corporation). June 19, 1940, No. 10578. (Class 89 (ii)] [Also in Group XXIII] Headless and other screws with a socket to receive the driver have a circumferential wall portion 18 eccentric to the axis of the screw and abutment driving faces 12 located at the ends of the part 18 farthest from the axis. Reverse rotation causes the screws to jam on the driver and axial alignment is maintained by concentric surfaces 13. The parts, 11 on which the abutments are formed are coned at 23 and the driver 14 formed at 15 to fit the the parts 13, is coned at the end to facilitate engagement. The driver may be such that jamming occurs on one side only.
Patent GB-1065516-A (GB)
Title: Bis-benzoxazolyl-stilbenes and their use as optical brightening agents
IPC: D06L4/65
Filed: 1965-03-12
Abstract: A mixture comprising 2 to 6 compounds of compounds of the formula <FORM:1065516/C2/1> may be obtained by mixing the individual components or by condensing 1 mol. of stilbene -4,41-dicarboxylic acid in the presence of phosphorus trichloride or another acid halogenating agent with 2 mols. in total based on said acid, of 2 or 3 compounds of the formula <FORM:1065516/C2/2> wherein R, R1 and R2 are hydrogen or C1- 4 alkyl groups. In the examples, mixtures are prepared in which the radicals R1 and R2 are hydrogen, methyl, ethyl and tert-butyl groups.ALSO:An optical brightening agent for polyolefin fibres comprises a mixture of 2 to 6 compounds of the general formula:  <FORM:1065516/D1-D2/1> wherein R1 and R2 are hydrogen or C1-4 alkyl groups.  The mixture may be employed in an aqueous bath in a finely dispersed state in the presence of dispersing agents.  The mixture may be employed in an amount of 0.005% to 0.5% based on the weight of the fibres.  The fibre may be a polypropylene fibre which may be modified with a metallic organic or inorganic compound, e.g. aluminium stearate.
Patent GB-1283149-A (GB)
Title: Improvements in photo copying methods and apparatus
IPC: G03G15/28
Filed: 1970-03-05
Abstract: 1283149 Photo-copying apparatus IWATSU ELECTRIC CO Ltd 5 March 1970 [10 March 1969] 10599/70 Headings G2A and G2H A photo-copying apparatus of the kind in which a stationary original 1 is imaged on to a stationary photo-sensitive sheet 9 by means of a reciprocatable scanning exposure device 8 containing a lens and three mirrors, is provided with a roll 6 of photo-sensitive material from which a sheet 7, the same length as the original to be copied, is cut prior to being fed to its exposure position. In use, the original 1 is positioned with one side at a fixed line 2. A scaler 3 carrying limit switches 4, 5 is moved to coincide with the opposite side of the original 1. When a switch 16 is switched on, a pair of feed rollers 15 rotates to deliver the sheet 7 from the roll 6, while at the same time and at the same speed, the exposure device 8 is displaced to the right (as seen), i.e. from its solid position, until it contacts the limit switch 4 and is stopped thereby while the sheet 7 is cut. The cut sheet 9 is then advanced by an endless belt 11 to the position shown, where it is stopped, in alignment with the original 1, by the limit switch 5. The lamp of the scanning device 8 is turned on and the device 8 is returned to its solid line position where it contacts a limit switch 13. The exposed sheet 9 is advanced by the belt 11 and the device 8 begins another cycle of movement. In an electrophotographic copier, a charger 10 and a developer 14 are provided. In a modification, Fig. 4 (not shown), a limit switch (29) aligned with a fixed line (30) on the original support, is operated by the trailing end of a cut sheet so as to stop the sheet in its exposure position.
Patent GB-768316-A (GB)
Title: Packing body for gasí¬or vapour-liquid contact towers
IPC: B01J19/30
Filed: 1955-04-13
Abstract: 768,316. Gas-liquid contact towers. DOW CHEMICAL CO. April 13, 1955 [June 4, 1954], No. 10682/55. Class 55 (2). A tower-packing body comprises three or more intersecting plate-like parts, the outer edges of which lie on or near a circumscribing sphere. One or more of the parts may be apertured to prevent the pocketing of liquid. In Fig. 1, three intersecting parts are in form of flat discs 10, 11, 12, the disc 12 being holed at 17 to avoid the said pocketing. In Fig. 2, the part 18 is in the form of a disc distorted into a saddle shape, fins 19 being formed, at right angles to one another, one on each side of the part 18 which may be perforated, as shown, or unperforated. The fins 19 may have parallel edges for a part of their lengths, the body then departing somewhat from true spherical outline. Nesting of the bodies may be reduced by fingers which extend from the ends of each fin 19 to the apex of the other. In Fig. 5, each side of the part 18 is provided with two crossed fins 20, 24 and is holed for drainage. The fins need not be plane-faced and may be corrugated at 26, Fig. 8, and deeply notched at 27. The fins may be replaced by a plurality of pins or partial fins. More than two fins may intersect on each side of the part 18. The bodies may be of metals, ceramics, glass, wood, organic resins or plastics and may be of a size proportional to the diameter of the tower, e.g. up to 2 inches for a tower of under 1 foot in diameter, and up to 6 inches for a tower diameter of over 3 feet.
Patent GB-560709-A (GB)
Title: Improvements in and relating to the catalytic conversion of olefinic hydrocarbons boiling substantially in the gasoline boiling range
IPC: B01J21/12
Filed: 1940-04-30
Abstract: Gasoline hydrocarbons of a predominantly saturated nature are obtained by subjecting a normally liquid hydrocarbon fraction boiling in the gasoline range and consisting of or containing a substantial amount of olefines to catalytic conversion in the presence of catalysts free from alkali metal compounds and prepared by calcination of a composite of precipitated hydrated silica and at least one hydrate of the groups comprising precipitated hydrated alumina and zirconia, the conversion being carried out at a temperature within the range 343-482 DEG  C., with a pressure of from atmospheric to 70 atmos., with liquid space velocities of from 0.5 to 5, and with contact of not more than one normally liquid volume of hydrocarbons per volume of catalyst before reactivation of the catalyst.  In examples (1) an octene fraction formed by the polymerisation of isobutene and butane and having a 136 bromine number is contacted with a silica-alumina composite at 371 DEG  C. under a pressure of 6.8 atmos. using a liquid space velocity of one. With a one hour run a product was obtained having a bromine number of 10; (2) a cracked gasoline containing 74 per cent olefines and 16 per cent aromatics was contacted with a silica-alumina-zirconia catalyst at 399 DEG  C. under a pressure of 6.8 atmos. and with a liquid space velocity of one.  With a half-hour run a product was obtained containing no olefines, 46 per cent aromatic hydrocarbons and 54 per cent paraffin hydrocarbons.  Specification 523,252, [Group III], is referred to.
Patent GB-900080-A (GB)
Title: Cleaning apparatus
IPC: A47L13/44
Filed: 1960-03-25
Abstract: 900,080. Polishing pads. NASH, L. M. March 25, 1960 [March 27, 1959], No. 10743/60. Class 19. A cleaning cloth 8 is gripped in a groove extending about the sides of a rectangular block 2 by an elastic band 44. The sides of the upper portion of the block are at intervals chamfered, the chamfering 48 extending down to the groove to aid lifting of the band out of the groove when it is desired to insert the cloth between the band and the block.
Patent GB-270677-A (GB)
Title: Improvements in or relating to conductor plates for electrical resistances
IPC: H01C10/12
Filed: 1927-04-21
Abstract: 270,677. Naamlooze Vennootschap Machinerieen en Apparaten Fabrieken. May 5, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Contacting-solid resistances.-The conducting plates at the ends of resistances formed of piles of carbon discs are made of comparatively inoxidizable metal such as nickel, pure silver, or rustless steel.